How a male rat behaves toward a female has been shown to alter ____ in her brain, presumably then

activating ___ receptors in some neurons.



a. peptide hormones; neurotransmitter d. neurotransmitter release; testosterone
b. neurotransmitter release; steroid hormone e. neurotransmitter release; peptide hormone
c. cAMP kinases; steroid hormone


B

Biology & Microbiology

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A pyrimidine or purine base that has been joined with a ribose or deoxyribose sugar moiety is now termed a ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Club mosses

a. are placed in the subphylum Pterophyta. b. are so-called because of the social nature of the plants. c. do not produce gametophytes. d. are so-called because most produce strobili.

Biology & Microbiology

The greatest volume of blood is found in the

a. aorta and arteries. b. capillaries. c. veins. d. lungs. e. heart

Biology & Microbiology

Water is important to biology for many reasons including because it:

What will be an ideal response?

Biology & Microbiology